# A140907 (b-file synthesized from sequence entry)
0 1
1 120
2 4950
3 108900
4 1557270
5 16195608
6 131589315
7 877262100
8 4971151900
9 24584605760
10 108284013552
11 431621592480
12 1577078895600
13 5337805492800
14 16880809870980
15 50245234086564
16 141622596077325
17 379998709805000
18 974996689631250
19 2401570793407500